https://library.celt.dias.ie/cgi-bin/koha/opac-search.pl?q=ccl=su%3AWales%20and%20su-to%3ACriticism%20and%20su-to%3ACriticism%20and%20au%3ADaniel%2C%20R.%20Iestyn&format=rss2 4 0 50 Gwaith LLawden / golygwyd gan R. Iestyn Daniel. ISBN 0947531777 https://library.celt.dias.ie/cgi-bin/koha/opac-detail.pl?biblionumber=94291
]]> https://library.celt.dias.ie/cgi-bin/koha/opac-detail.pl?biblionumber=94730 Gwaith Ieuan ap Rhydderch / golygwyd gan R. Iestyn Daniel. ISBN 0947531076 https://library.celt.dias.ie/cgi-bin/koha/opac-detail.pl?biblionumber=100028
]]> https://library.celt.dias.ie/cgi-bin/koha/opac-detail.pl?biblionumber=100028 Gwaith Casnodyn / golygwyd gan R. Iestyn Daniel. ISBN 094753170X https://library.celt.dias.ie/cgi-bin/koha/opac-detail.pl?biblionumber=109839